diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 832edc66e..226e9d359 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.0.0+dfsg-1"
-export PIKA_PACKAGE_NAME="fastddsgen"
+export PIKA_PACKAGE_VERSION="0.9.0-2"
+export PIKA_PACKAGE_NAME="rust-gsk4-sys"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"